EC200U MQTT connection getting drop

IoT Modules
1

In our project, we are using the EC200U CAT 1 Module, where we are observing the MQTT connection getting disconnected if we continuously receive a payload in an interval of 1 second.The payload size is around 1KB ~ 2KB

Around 1-2 minutes of operation, the connection gets disclosed in EC200 by acknowledging this message +QMTSTAT: 0,1, which means connection is getting reset by peer according to MQTT Application Notes

2

You need to verify whether the MQTT server itself is the problem, I suggest you use EMQ for cross-validation;